18164100797 has 2 divisors, whose sum is σ = 18164100798. Its totient is φ = 18164100796.

The previous prime is 18164100781. The next prime is 18164100803. The reversal of 18164100797 is 79700146181.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12938835001 + 5225265796 = 113749^2 + 72286^2 .

It is a cyclic number.

It is not a de Polignac number, because 18164100797 - 2⁴ = 18164100781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18164100737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9082050398 + 9082050399.

It is an arithmetic number, because the mean of its divisors is an integer number (9082050399).

Almost surely, 2^18164100797 is an apocalyptic number.

It is an amenable number.

18164100797 is a deficient number, since it is larger than the sum of its proper divisors (1).

18164100797 is an equidigital number, since it uses as much as digits as its factorization.

18164100797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 44.

The spelling of 18164100797 in words is "eighteen billion, one hundred sixty-four million, one hundred thousand, seven hundred ninety-seven".